Instrumentalism is an approach to science that treats a theory as a tool and only as a tool for computation; it dispenses with the concept of truth.Conventionalism treats a theory as true by convention if it forms a pattern of observations from which correct predictions can be made.Operationalism denies meaning to the concepts of a theory unless they can be defined operationally. It is argued in this paper that truth-value is indispensable to science, because a theory can be rejected only (...) if an empirical consequence is false and if falsity of a conclusion entails falsity of a premise. This undermines the above positions. The fourth interpretation isinduction. Induction, by contrast, uses the notion of truth-value. What is focused on here is its reliance on the ultimacy ofobservation. The present thesis is that instrumentalism, conventionalism, and induction are different attempts to handle observations. The common problem is the gap between data and theory.All these interpretations share a philosophy of observationalism. The aim of this paper is to show that the several orthodox interpretations of science all fail to solve the problem of the data-theory gap, and to show that they all presuppose a philosophy of observation. (shrink)

Originally published in 1952. This book is a critical survey of the views of scientific inference that have been developed since the end of World War I. It contains some detailed exposition of ideas – notably of Keynes – that were cryptically put forward, often quoted, but nowhere explained. Part I discusses and illustrates the method of hypothesis. Part II concerns induction. Part III considers aspects of the theory of probability that seem to bear on the problem of induction and (...) Part IV outlines the shape of this problem and its solution take if transformed by the present approach. (shrink)

The problem to be discussed here concerns ontology so far as it may not be formed by scientific theory. In brief terms, the problem arises in the following way. On the one hand, the world surely consists of whatever is there, irrespective of whether human beings are around or not, and irrespective especially of whether human beings have constructed any scientific theories depicting the nature of the world; on the other hand, scientific theories are subject to the limitation that we (...) can never verify them or prove them to be true, so that the ontology prescribed by scientific theory is not firmly established but is only what is attributed to the world by a fallible scientific theory at any given time. The problem could also be put in terms of ‘conceptual networks’ or in terms of language-systems. (shrink)

The schema, or theoretical framework, holism, is concerned with the essence of society as a whole. Though undermined by Popper, it cannot be refuted ? nor proved. The extreme alternative is individualism. Several forms, due to Freud, Wittgenstein, and phenomenology, make presuppositions that require the individualist interpretation of society to be reopened at a new point. Popper's ? or Weber's ? is the sturdiest; its units being individual actions plus their unintended by?products. The Weber?Popper schema can provide a framework for (...) many satisfactory societal explanations. But individualism misses the holistic possibility of dynamic societal forces; the individualist fails to produce any dynamic laws. A dynamic bipolar schema could put both schemata to work without prescribing which would predominate. Empirical investigation would determine the more fruitful for a given problem. This schema would be ?justified? by fostering a satisfactory empirical social theory. The present investigation also reveals where the real controversies about schemata lie. (shrink)

Some twenty different background approaches, or schemata, permeate the social sciences. Most of their exponents regard their choice as excluding the rest. This paper is concerned to show that all such conflict is merely disputatious since virtually all the schemata require one another. Taking the individual's need to act as starting-point, certain restrictions limiting his freedom of action are identified as factors of the overt societal situation. These, however, fail to explain all aspects of his powerlessness, to account for which (...) he then seeks such deeper constraints as unseen powers or human conspiracies. Social scientists for their part develop theories or interpretations of the societal situation. The paper turns to the first of three groups of interpretations, concentrating on one constituent of the group, functionalism, which is a mirror-image of another constituent, 'conflict theory'. The complementarity of these two is claimed to apply to virtually all the schemata considered. (The second and third groups are deferred to the sequel.) The Appendix deals with the way in which explanatory factors can be combined. Having removed the unreal contentions associated with various schemata, the way is clear to treatment of the one substantive issue among them - to do with holism - in the sequel. (shrink)